* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    list-style: none;
}

.header {
    width: 1700px;
    height: 100px;
    font-size: 40px;
    font-weight: 700;
    background-color: skyblue;
    margin: 3px auto;
    /* text-align: center; */
    color: #fff;
    display: flex;
    flex-direction: row;
    position: relative;
    justify-content: center;
    line-height: 100px;
}

p {
    display: none;
}

.active {
    display: block;
}


/* p {
    position: absolute;
    right: 40px;
    top: 25px;
    font-size: 25px;
    line-height: 40px;
} */

/* .self {
    width: 150px;
    height: 45px;
    font-size: 20px;
    top: 25px;
}

.logout {
    width: 150px;
    height: 45px;
    font-size: 20px;
} */

button {
    width: 150px;
    height: 45px;
    font-size: 20px;
    /* line-height: 100px; */
    
}

.nickname {
    line-height: 40px;
    font-size: 30px;
}

.on {
    position: absolute;
    right: 30px;
    font-size: 30px;
    /* line-height: 100px; */
    /* top: -5px; */
}

.list {
    width: 1700px;
    height: 150px;
    margin: 1px auto;
    /* border: 1px solid red; */
    display: flex;
    /* text-decoration: none; */
}

.a2 {
    text-decoration: none;
    margin: auto;
    color: black;
    font-size: 70px;
    font-weight: 700;
    line-height: 150px;
}

.a1 {
    margin: auto;
    text-decoration: none;
    font-size: 40px;
    font-weight: 800;
    color: red;
    line-height: 100px;
}

.off {
    position: absolute;
    right: 30px;
}


.poto {
    width: 1700px;
    height: 800px;
    margin: 1px auto;
    /* border: 1px solid red; */
    overflow: hidden;
}

ol {
    width: 8500px;
    height: 100%;
    display: flex;
    flex-direction: row;
    /* border: 1px solid red; */
}

.poto>ol>li {
    /* width: 500%; */
    /* width: 100%; */
    width: 1700px;
    height: 100%;
    /* border: 1px solid red; */
}

img {
    width: 100%;
    height: 100%;
}